Published Papers - Abstract 721

Ju H, Jones M & Mishra G. Premenstrual syndrome and dysmenorrhea: symptom trajectories over 13 years in young adults. Maturitas, 2014; 78(2): 99-105

Objectives: To ascertain the prevalence of premenstrual syndrome (PMS) and dysmenorrhea in Australiawomen and to examine whether there is population subgroups with distinct symptom trajectories.Study design: A prospective cohort study, including 9671 young women random sampled from nationalMedicare database and followed up for 13 years, examined the prevalence, the trend and the symptomtrajectories of the conditions.Main outcome measures: Prevalence of PMS and dysmenorrhea over time, their symptom trajectories, andthe probability of symptom reporting at follow-up.Results: The prevalence of PMS varied between 33 and 41% and that of dysmenorrhea between 21 and26%. The probabilities of reporting PMS and dysmenorrhea were 0.75 (95% CI, 0.73, 0.76) and 0.70 (95% CI,0.68, 0.72), respectively, among women who reported them in three previous consecutive surveys. Fourunique trajectories were identified for both conditions. PMS was experienced by 80% of women sometime during the study period, with normative (22.1%), late onset (21.9%), recovering (26.5%) and chronic(29.5%) groups revealed. Dysmenorrhea occurred in 60% of women with normative (38.3%), low (28.0%),recovering (17.2%) and chronic (16.5%) groups identified.Conclusions: PMS and dysmenorrhea are common among young women. Both have relatively stableprevalence over time, but exhibit considerable variation at the individual level. Four subgroups of womenwho followed similar symptom trajectories were identified. PMS was experienced by 80% of womenduring the study period and it tended to be a long-lasting problem in many. Although 60% of womenexperienced dysmenorrhea, only a small group continuously reported it. Smoking and illicit drugs use,and smoking and obesity were more common among women with persistent PMS and dysmenorrhearespectively.